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    Earth working implement
    139.
    发明授权
    Earth working implement 有权

    公开(公告)号：US12012717B2

    公开(公告)日：2024-06-18

    申请号：US17164124

    申请日：2021-02-01

    申请人： OCFab Ltd.

    发明人： Micheal Justin Waldner

    IPC分类号： E02F3/76 ,  E02F3/815 ,  E02F3/84 ,  E02F5/02 ,  E02F9/08

    CPC分类号： E02F3/7604 ,  E02F3/7672 ,  E02F3/8155 ,  E02F3/844 ,  E02F5/027 ,  E02F9/0808

    摘要： An earth working implement has a main frame, a main blade supported on the main frame transversely to the forward direction, and two wing blades pivotally supported at opposing ends of the main blade for movement between forward and rearward projecting orientations. A tilt actuator controls angular orientation of the main blade relative to the main frame about a lateral axis. Two rear wheels support the rear end of the frame for rolling along the ground. A hitch arm extends forwardly from a pivotal connection of the main frame for connection to a towing vehicle so as to vary in angular orientation relative to the main frame independently of the main blade. Furrow openers in a laterally spaced apart row are movable relative to the main frame between a working position protruding below the cutting edge of the main blade and a raised storage position.